491504

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:177

約数の個数: 40

約数和(自身を含む): 1093680

約数和(自身を除く): 602176

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 139, 208, 221, 272, 278, 442, 556, 884, 1112, 1768, 1807, 2224, 2363, 3536, 3614, 4726, 7228, 9452, 14456, 18904, 28912, 30719, 37808, 61438, 122876, 245752, 491504]

約数ペア:

[(1, 491504), (2, 245752), (4, 122876), (8, 61438), (13, 37808), (16, 30719), (17, 28912), (26, 18904), (34, 14456), (52, 9452), (68, 7228), (104, 4726), (136, 3614), (139, 3536), (208, 2363), (221, 2224), (272, 1807), (278, 1768), (442, 1112), (556, 884)]